Dedicated to educating the whole student, this national organization is "the the leading voice for student affairs administration, policy, and practice." Check out the various Knowledge Communities, which gather together information and resources on diversity and gender issues; assessment; sprituality; safety and more.
What's it good for?
While it's not a good idea to cite Wikipedia as a source, it is a great starting point. If you find a page you're interested in, check out the references, see also, and external links sections.